44798147981 has 2 divisors, whose sum is σ = 44798147982. Its totient is φ = 44798147980.

The previous prime is 44798147923. The next prime is 44798147983. The reversal of 44798147981 is 18974189744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36764611081 + 8033536900 = 191741^2 + 89630^2 .

It is a cyclic number.

It is not a de Polignac number, because 44798147981 - 2³⁴ = 27618278797 is a prime.

It is a super-2 number, since 2×44798147981² (a number of 22 digits) contains 22 as substring.

Together with 44798147983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44798147983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22399073990 + 22399073991.

It is an arithmetic number, because the mean of its divisors is an integer number (22399073991).

Almost surely, 2^44798147981 is an apocalyptic number.

It is an amenable number.

44798147981 is a deficient number, since it is larger than the sum of its proper divisors (1).

44798147981 is an equidigital number, since it uses as much as digits as its factorization.

44798147981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 62.

The spelling of 44798147981 in words is "forty-four billion, seven hundred ninety-eight million, one hundred forty-seven thousand, nine hundred eighty-one".